40400670305 has 8 divisors (see below), whose sum is σ = 48599341800. Its totient is φ = 32241511296.

The previous prime is 40400670301. The next prime is 40400670307. The reversal of 40400670305 is 50307600404.

It can be written as a sum of positive squares in 4 ways, for example, as 21574909456 + 18825760849 = 146884^2 + 137207^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40400670305 - 2² = 40400670301 is a prime.

It is a super-2 number, since 2×40400670305² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40400670301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9875870 + ... + 9879959.

It is an arithmetic number, because the mean of its divisors is an integer number (6074917725).

Almost surely, 2^40400670305 is an apocalyptic number.

It is an amenable number.

40400670305 is a deficient number, since it is larger than the sum of its proper divisors (8198671495).

40400670305 is a wasteful number, since it uses less digits than its factorization.

40400670305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19756243.

The product of its (nonzero) digits is 10080, while the sum is 29.

The spelling of 40400670305 in words is "forty billion, four hundred million, six hundred seventy thousand, three hundred five".